Orion 6/6I Realignment Function, Hidden Functions, Altitude and Azimuth Test, Encoder Test

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displayed on the first line of the LCD screen. The lower left of the screen indicates the current constellation the telescope is pointing to. The lower right numbers are the current azimuth (“AZ”) and altitude (“ALT”) coordinates of the telescope; this information is generally not useful.

The Realignment Function

This function is useful for obtaining a new alignment fix during an observing session to correct for small pointing errors. Use this function only when pointing accuracy for a certain area of the sky appears to be poor compared to other areas of the sky. This is evident when objects in one area of the sky consistent- ly fall at the edge or just outside the field of view (of the 25mm eyepiece) when the numbers on the LCD screen read 0.0 0.0. This can happen if the alignment stars initially chosen during setup are somewhat close to each other (less than 60˚ apart) or if the area of sky being viewed is a considerable distance away from the alignment stars chosen.

To improve pointing accuracy in a specific area of the sky, select an object in the controller’s database from that region, and use the guide arrows to find the object. Precisely center the object in the eyepiece (preferably a high-powered one). Now, press the FCN button, and the R.A. and Dec. coordinates of the centered object will be displayed. Then, press the Enter button. The LCD screen will now display “ALIGN OBJECT 3” on the first line, and will be flashing the object currently cen- tered in the telescope on the second line. Pressing Enter again then realigns the IntelliScope system to the object centered in the telescope. The LCD screen will display a new “warp factor” associated with the new alignment. If this number is greater than ±0.5, you may want to consider resetting the controller to perform another two-star alignment. Turn the controller off, then on again (with the Power button), to do this.

If, instead of pressing Enter a second time after pressing the FCN button, you press one of the arrow buttons, the list of initial setup alignment stars will be displayed. If you wish, you can select one of these alignment stars to realign on. Do this by scrolling to the desired alignment star using the arrow but- tons, center the star in the telescope, and press Enter.

In general, it will not be necessary to use the realignment func- tion, but it is a handy feature to have at your disposal. Also, be aware that while pointing accuracy will increase in the area of sky around the object realigned on, it may decrease in other areas of the sky.

K. The “Hidden” Functions

All of the active functions of the IntelliScope Computerized Object Locator have been outlined. There are, however, some additional “hidden” functions that may be of some use to you. To access the hidden functions, press the Enter button while pressing the Power button to turn the controller on. The LCD will display its introduction screen (with software version num- ber) and then show the words “ALT AZM TEST.” This is the first hidden function. Scroll to the other hidden functions by using the arrow buttons. The other hidden functions are “ENCODER TEST,” “DOWNLOAD,” “CHECKSUM,” “RE-WRITE,” and “CLOCK.” When the hidden function you wish to use is dis- played, press Enter to select it. To exit the currently chosen

hidden function, press any button except for the Enter or arrow buttons. To completely exit the hidden functions section of the controller, you will need to hold the Power button down until the controller turns off.

The rest of this section gives the details and purpose of each hidden function.

Altitude and Azimuth Test

The altitude and azimuth test (“ALT AZM TEST”) is a diagnos- tic test that gives relative altitude and azimuth positions for the telescope. This test will allow you to easily see if the encoders are “talking” to the controller, and if the encoders are accurate- ly monitoring the telescope’s motions. To effectively use this test, make sure the telescope optical tube is in the horizontal position when pressing the Enter and Power buttons to access the hidden functions.

Once “ALT AZM TEST” is chosen from the hidden function options, the LCD screen will display the telescope’s current relative altitude and azimuth position (in degrees); the relative altitude is in the upper right, while the relative azimuth is in the lower right. To begin with, both of these numbers will be +000.0. The first two sets of numbers on the upper and lower lines of the LCD screen are meaningless for the purposes of this test.

If you move the telescope counterclockwise in azimuth, the number in the lower right should increase, while if you move clockwise in azimuth, the number will decrease. If you rotate the telescope exactly 360˚ in azimuth, the readout should return to the original +000.0 reading.

If you move the telescope upwards in altitude, the number in the upper right should in-crease, while if you move downwards in altitude, the number will decrease. If the telescope tube was perfectly horizontal when you enabled the hidden functions of the controller, then the altitude will read +090.0 when the tele- scope is pointed precisely vertical.

If one, or both, of the encoders are not behaving properly when performing this diagnostic test, there may be a problem with the assembly of the system, or a problem with one of the encoder boards or discs. Also, be sure to check that all cable connections are secure.

Encoder Test

The encoder test is another diagnostic test that gives informa- tion about the performance of the encoders themselves. Select “ENCODER TEST” from the list of hidden functions using the arrow buttons and press Enter.

The LCD screen will now display two lines of data. The top line of data corresponds to the altitude encoder, while the lower line of data corresponds to the azimuth encoder. The first two digits on each line denote the amplitude of the signal from one of the magnetic sensors on the encoder board, the second two digits represent the amplitude from the other sensor on the encoder board. The numbers are in hexadecimal (base 16) digits. Therefore “A” in hexadecimal represents “11” in decimal, “B” represents “12” in decimal, “C” represents “13,” “D” repre- sents “14,” “E” represents “15,” and “F” represents “16.” When moving the telescope in altitude or azimuth, you will note that

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Contents #9926 / #27126 Orion StarBlast 6/6i IntelliScope ReflectorPage Table of Contents Unpacking Parts ListJam nut for vertical stop bolt Azimuth encoder disk Assembly of #27126 StarBlast 6i IntelliScope Assembly of #9926Under side of top baseplate Pre-drilled starter hole BaseplateHead of azimuth axis bolt and fender washer Tape Compression spring Base where you want the clip to be located Into the jack on the right side of the encoder connectorOn the telescope mounting bracket shaft with the flat Side of the ring facing outward the opposite side hasInstall the EZ Finder II Reflex Sight Final Assembly of Your Telescope StarBlast 6/6iInstall the Eyepiece Rack Attach the Optical Tube to the BasePreparing to Use Your Telescope Observing With Your Telescope Replacing the EZ Finder II BatteryAligning the EZ Finder Choosing an Observing SiteEyepiece Selection Tracking Celestial ObjectsWhat to Expect Sun MoonPlanets StarsPowering the Controller Using the IntelliScope Computerized Object LocatorSetting the Vertical Stop AlignmentJam nut Vertical stop L-bracket Simple Two-Star AlignmentOverview of the IntelliScope Computerized Object Locator Alignment Error Warp FactorPushbuttons Locating the Planets Guide ArrowsMessier Catalog Locating Deep-Sky Objects by CatalogNew General Catalog Locating Nebulas Index CatalogLocating Star Clusters Locating Stars Locating GalaxiesNamed Stars Double and Multiple StarsCatalog ST Stars Using the ID ButtonTours of the Best Objects Starting a TourFunction FCN Button Adding User-Defined ObjectsDec. Coordinates Hidden Functions Realignment FunctionAltitude and Azimuth Test Encoder TestDownload Checksum Rewrite Care and MaintenanceClock Specifications of the IntelliScope System Specifications of the StarBlast 6/6iObjects in database Collimation Cap Appendix a Collimating the OpticsPrimary Mirror Center Mark Preparing the Telescope for Collimating Adjusting the Secondary Mirror’s Rotational PositionAligning the Secondary Mirror Star-Testing the Telescope Adjusting the Secondary Mirror’s TiltAligning the Primary Mirror Appendix C Troubleshooting IntelliScope System Appendix B Cleaning the OpticsWarp numbers larger than Warp factor consistently above ±0.5 but below ±2.0Page Spic Appendix D Alignment Star Finder ChartsDaylight saving time Early July Late JuneLate July Early AugustEarly September 200 AM Late September 100 AM Early October EgaLate October Early January Late DecemberLate January Early FebruaryCanes Venatici Appendix E Constellation AbbreviationsPiscis Austrinus Appendix F ST Catalog ∑113 Psi ∑80 ∑79 ∑88 ∑90 Zeta EtaUV p Nu Phi ∑162 ∑174 ∑163 Baten Kaitos ∑178 ∑180 Rumker3506 OmicronTheta Epsilon75871 Alpha Zaurak Lambda26 03 12916 Zeta∑572 54 R ∑590 Iota Pi4 Pi5 ∑552 ∑559Hinds Crimson Star ∑627 ∑644 ∑655 Rho476 H3750 RigelDelta 119 ∑718 Alnilam Phi2 Zeta Sigma Phact Alnitak GammaAlpha Eta ADS Furud Beta Zeta Mirzam Mu32.3 +07 +20.2 +37Sirius ∑948 ∑958 Nu1∑80 ∑1037Zeta c Beta Procyon O∑179 ∑1138 ∑1127 ∑1149AC 31 Beta 3948 ADS HN19 H269 Alpha Kappa Zeta Rumker∑1282 ∑1298 Rho ∑1311 H4903 ∑1224 ∑1223H4188 h4191 ∑1321 ∑1334 ∑1338 Alpha Kappa ∑1347 Kappa 24 PhiZeta ∑1351 Alterf ∑1355Tania Australis Mu Alpha 45 Delta Alpha Omega Lambda ADS∑1633 ∑1466ADS ADS 8119 Nu ADS 8148 83 84 Lambda Beta H4486 +04 +68.8Alpha Delta Gamma ADS Epsilon M40 ∑1639+05.3 +21 57.2 +03.4 +38.3 +66.0Rigil Kentaurus Pi ∑1864 Mizar Spica ∑∑123 ∑175513 29.7 ADS 8934 13 32.3 13 20.3H4715 Zeta Alpha q Alpha C1 Izar Dunlop∑1932 Mu ∑1931 H4753 Iota DeltaRmk Delta Sigma Rho Epsilon Iota ∑2052Delta Sigma 121 H4853Shaula Rasalhague Iota Zeta AtriaAlpha Eta 75, Rho 75’ 40’ 35’Psi ∑2241 Kappa40-41 100∑2375 ∑2379 Beta ∑2404 ∑2420 Delta2 ∑525 Nunki 13 ∑2417 Alpha ∑359 ∑358 VegaH5082 ∑2449 ∑2474+49 +15.1 Delta Epsilon ∑2583 Zeta Chi Altair Eta 57 O∑532 Psi+32.6 +50 +45 +35 +10.6 +33 +18.5 +70 +11.8 +19 +08 29.2RT Alpha Alpha ∑2671 BF h1470 X WZ ∑2675 ∑2637 ∑2644Omicron ∑2716 S76312 Xi ∑2758 ∑2742Delta Theta Beta ∑2816 V460 SS RV Epsilon Lambda ∑2840 ∑2841Alpha ∑2894 Pi ∑2873 Eta ∑2863 O∑461H5334 +82+03 +37 Phi Psi3 Dunlop249 Errai Theta 107 ∑3042 Lal192 Sigma ∑3050Star Double star challenge Page One-Year Limited Warranty

6/6I specifications

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